/*顶部*/
.top{
    background: black;
    text-align: right;
    font-size: 20px;
    line-height: 40px;
}
/*导航*/
.nav a{
    color: black;
    line-height: 40px;
}
/*左边*/
.left{
    width: 20%;
    float: left;
    text-align: center;
}
.left img{
    width: 38px;
    height: 38px;
}
.left span{
    color: black;
    vertical-align: 50%;    /*文字垂直居中对齐*/
}
/*中间*/
.mid{
    width: 60%;
    float: left;
    /*text-align: center;*/
}
/*右边*/
.right{
    width: 20%;
    float: left;
    /*text-align: center;*/
}
/*底部*/
.footer{
    clear:both;
    text-align: center;
    background: blue;
    line-height: 25px;
}




a{
    text-decoration: none;
    color: white;
}
a:hover{
    color: red;
}